We can detect and act upon changes to input property values with the ngOnChanges() method of the OnChanges interface. Child component: src/app/child/child.component.html src/app/child/child.component.css src/app/child/child.component.ts Parent…

Step 1: find PHP version Step 2: Step 3: in this case we install php56-php-pgsql Or you can use this repo: http://rpms.famillecollet.com/enterprise/7/test/x86_64//php56-php-pgsql-5.6.30-2.el7.remi.x86_64.rpm Then you will…